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Products & Solutions

Unity Analog Router

Handcrafted-Quality Automated Routing for Analog Designs

Today’s advanced analog designs continue to grow in size and complexity. While analog routing has always been a labor-intensive process calling on all the skills of the layout designer, this increasing complexity also necessitates automation to lend both speed and flexibility. However, traditional analog routing tools automate only parts of the process, are difficult to set up and learn, and focus solely on 100% completion and DRC/LVS correctness. Today’s analog designs require a more sophisticated solution that enables automated efficiency and handcrafted quality.



The Pulsic Unity Analog Router delivers a simple, easy-to-use, guided flow that delivers DRC correct routing and completes routing patterns and topologies that an experienced analog designer would create when routing the layout by hand.

“After extensive validation, we found that the new Pulsic Unity analog routing technology is the only automatic routing tool that can handle this difficult task of our next generation Analog/Mixed-Signal Routing for STARC Motif.  The resultant routing patterns are what a layout designer would create manually, and we are very satisfied with the results.”

Kunihiko Tsuboi
Senior Manager, Mixed Signal Design Group
STARC


Benefits

  • Intuitive, easy-to-use, guided flow for routing analog designs without
    time-consuming set-up and extensive training
  • Automatic analog routing with the quality of results of skilled,
    handcrafted routing
  • Step by step hierarchical routing flow encompassing all aspects of
    analog routing
  • 100% routing completion
  • DRC/LVS correct routing


Features

  • Combines the Pulsic industry-leading, constraint-driven, shape based router with exclusive features designed specifically for analog layout
  • Proprietary geometry recognition algorithms use the topology of transistors and resistors, including relevant groupings, to complete routing, so minimal constraint set-up and tool knowledge is required
  • Support for analog-specific routing functions:
    • Signal flow aware routing flow
    • Intelligent, pattern-based routing based on design and device
      layout topologies
    • Constraint driven symmetry and near-symmetry routing topologies
    • Pin current density based routing with net tapering based on
      current density
    • Common-centroid group routing
    • Complete shielding solution
  • Can be used automatically or interactively, depending on level of automation required for routing completion
  • (more)


Digital-Approach Routers Fall Short

For an analog router to add value and improve productivity, it must not only produce complete, DRC correct routing, but also comprehend and encompass the entire analog routing flow. Most importantly, it must produce results that are at least equivalent in quality to those produced manually by a skilled analog layout designer.

Current automated digital routing solutions do not address enough analog-layout challenges. These tools are difficult and time-consuming to set up and require extensive training, even for experienced analog designers. And the routing results produced by these tools are far inferior to those an experienced designer can produce manually, so many designers prefer to route their designs by hand.


Unity Analog Router: A Unique Analog Solution

The Unity Analog Router provides experienced layout designers with an easy-to-use guided flow that enables them to complete routing very quickly, using a style that is similar to a manual layout approach. Only Unity Analog Router incorporates analog-specific features that address the unique needs of analog routing.

The Unity Analog Router combines the full correctness of a constraint-driven routing approach with a unique algorithm that recognizes devices, positions, and geometries, as well as net topologies, in order to determine the best routing patterns. This unique approach enables Unity Analog Router to deliver a fully routed, electrically correct design, with routing patterns identical to those an analog designer would create by hand – in a fraction of the time required for manual routing.

Designers can also use the Unity Analog Router early in their design process to assess the feasibility of routing a hierarchical design, and to provide more accurate analog block/design-size estimation during floorplanning.